Korg 800DV User manual

SVTlTHiSIZER
SERVICE MANUAL
f — Contents —
PART LIST (I ~5)
BLOCK DIAGRAM
SBC-049 CIRCUIT BOARD
SBC-050 CIRCUIT BOARD
SBC-05 I CIRCUIT BOARD
POWER SUPLLY CIRCUIT BOAflD
OVERALL CIRCUIT DIAGRAM
KEIO ELECTRONIC LAB., CORP.
TOKYO, JAPAN
Scan by Manual Manor
http://www.markglinsky.com/ManualManor.html

(5-2)
Scan by Manual Manor
http://www.markglinsky.com/ManualManor.html

PART LIST
(5-1)
Scan by Manual Manor
http://www.markglinsky.com/ManualManor.html

J0
0
(5 -3)
Scan by Manual Manor
http://www.markglinsky.com/ManualManor.html

(5-4)
Scan by Manual Manor
http://www.markglinsky.com/ManualManor.html

(5-5)
Scan by Manual Manor
http://www.markglinsky.com/ManualManor.html

vco
VCF
Power Supply
UPPER
1 f
Terminal
Oscillator
Bender
Vibrato
Porta
mento
Wave Form
changer
Pink Noise
Mixer
High Pass
Filter
i
Low Pass
Filter
r
44 Key Board
LOWER
Trigger
1
Repeat Mode
i
Oscillator
Key Transpose
'
Pdrta-
mento
Vibrato
Bender
Ring Modulator
White
Noise
Wave Form
changer
Mixer
Expand
Envelope
Generator
Envelope
Generator
Expand
VCA
High Pass
Filter
Low pass
Filter
■> Electric Control
■* Signal
Out put
VCA
\
VCO
VCF
Scan by Manual Manor
http://www.markglinsky.com/ManualManor.html

SBC-049 CIRCUIT BOARD
y
Buffer
Trigger ■
RING MODULATOR
VOLUME BALANCE
9COK
IOK
NOISE
VOLUME
BOOK
TUNING
IMPEDANCE
IOK
137
SBC-049
Ring Modulator
6ND
T«ntal
Carbon film
2SC<44(R) Sel
2SA6O8WJ
2ft K 30 Co*n
Aluminum
C J Polyester
Diode
Jumper
Empire Tube
SOOK
Semifixed Resistor
Pink/White Noise
Scan by Manual Manor
http://www.markglinsky.com/ManualManor.html

SBC-050 CIRCUIT BOARD
0
Envelope Generator
SBC-050
H.P.F.
BRIGHT
CUT OFF
2.2K
BALANCE
5K
LP-0U1
50K
soon
5OK
500A
VCA
KEIO
IC
TS 200042
60
HP-OUT ft
73 74 GNO -VfcE -fVbC
TanUlum
a
t
o
Carbonfilm
^.U/ ±5%
Carbonlttm
Polyester
Diode
Jumper
Empire Tube
Semifixed Resistor
Scan by Manual Manor
http://www.markglinsky.com/ManualManor.html

SBC-051 CIRCUIT BOARD
Chorus
O.S.C.
SBC-051
8 V / 10 V\f)l2 V n B «
Chorus
ISI35S
T«nttlum
Matalfibn
0'
nfilm
CtrbonfBm
Jumper
Empire Tube
Aluminum
Polystyrene
{ ) Polyester
Semifixed
Resistor
Trig Detect
Bender
0
Scan by Manual Manor
http://www.markglinsky.com/ManualManor.html

POWER SUPPLY CIRCUIT BOARD
2SA-699
2SC-I226A
470PF
D; 2SA 720(R)
[); 2SC 693(G)F
§; 2SA 608(G)
\
Scan by Manual Manor
http://www.markglinsky.com/ManualManor.html

TRIGGER C.C.T
BQARPCCJ
2SCH226A (Q)
2SA-699 (Q)
COARSE
TUNIN
PORTAMENTO SW.
6 6 6 6
42 41 40 39
BIVRATO SW
REPEAT MODE -^
ROTARY SW. ':.
HIPEAt C.CT
Scan by Manual Manor
http://www.markglinsky.com/ManualManor.html

OVER
fY 80ARJ) CCT
•■v
DIAGRAM
TERMINAL Q.C.T V>^^<O "tRIOQEr'cxt"'!!
' "rev " **Qfr-/l -—
MODE C.C.T
-T~"*w*-HMr*m
OCTAVE MIXER ROTARY SW.
©®®©C5)®©
rf° ....
OCTAVE ROTARY SW.
) 6,6 6 o w
I 41 40 39 38 57 fU Q
BENDER 8W
REPEAT MOOE L.
ROTARY SW. -'
O.QPIMK
^^^ NOISE
WAVE MOOE
ROTARY SW
REPEAT SPEED
WM TO L9V Q-f VM
(tOKA <
U_4
' 1 Li
REPEAT C.C.T
Q
(8IVRAT0 * CHOflW
NOS
t
n
M
Scan by Manual Manor
http://www.markglinsky.com/ManualManor.html

"A "6 "A
40
42SK-90
(OR)
REPEAT MOOE -^
ROTARY SW.
REPEAT C.C.T
WO——
HP-PUT O
HIGH PAS8 FILTER C.C.T
LOW R188 FILTER C.C.T
REPEAT RATIO
T9-8OIOI? . -f
7 4 i
ENVEUOFt AERATOR WT expand sw.-Qw1
8M6TAIN 8W
FROM ACCESSORY TO ACCESSORY
VOLUME 68
FOOT CONTROL
Scan by Manual Manor
http://www.markglinsky.com/ManualManor.html

42 41 40 89 38 57 OJ
BENDER 8W
8PEED
BENDER
REPEAT MODE -4>
ROTARY 8W.
WAVE MODE
ROTARY SW
REPEAT SPEED
.SPEED CBIVRATOQc CHOR
UW RA88 FILTER CjCT
A WAVE MIXER
lOXBHf 117 |OK ttjl/MV
T8-801018
RING MODULATOR CCT.
C.CT expand sw. ♦O60'
8U8TAIN 8W.
iookI moo.
RATOR CCT
NOISE 8ENE
KEIO IC '
Scan by Manual Manor
http://www.markglinsky.com/ManualManor.html